PS-3401 Heater / Stirrer Model PS-3401 Operating Instructions Safety instructions... 2 Inspection... 3 Control... 4 Trial run... 6 Heating... 6 Residual heat warning (Hot)... 7 Stirring... 7 Faults... 7 Maintenance... 8 Standards and regulations... 8 Specifications... 8 Warranty... 9 1
Safety instructions For your protection Read the operating instructions in full before starting up and follow the safety instructions when in use. Ensure that only trained staff works with the device. Socket must be earthed (protective ground contact). Caution-Magnetism! Effects of the magnetic field have to be taken in to account (e.g. data storage media, cardiac pacemakers ). The heating plate can reach temperatures of 310 C and pay attention to the residual heat after switching off. The main power supply cable should not touch the heating plate. Wear your personal protective equipment in accordance with the hazard category of the media to be processed. Otherwise there is a risk from: - Splashing and evaporation of liquids - Ejection of parts - Release of toxic or combustible gases Set up the device in a spacious area on an even, stable, clean, nonslip, dry and fireproof surface. Don t use damaged components. Gradually increase the speed and reduce the speed if - the medium splashes out of the container because the speed is too high - the machine is not running smoothly - the container moves on the heating plate Caution! Only process and heat up any media that has a flash point higher than the adjusted safe temperature limit that has been set. The safe temperature limit must always be set to at least 50 C lower than the fire point of the media used. Beware of hazards due to: - flammable materials - combustible media with a low boiling temperature - glass breakage - incorrect container use - overfilling of media - unsafe condition of container The machine may heat up when in use. Don t use the machine in explosive atmospheres with hazardous substances. Process pathogenic materials only in closed containers under a suitable extractor hood. Only process media that will not react dangerously to the extra energy produced in other ways, e.g. through light irradiation. Accessories must be securely attached to the machine and can t come off by themselves. Always disconnect the plug before fitting accessories. The machine can only be disconnected from the mains supply by pulling out the mains plug or the connector plug. 2
When using PTFE-coated magnetic bars, the following has to be noted: Chemical reactions of PTFE occur in contact with molten or solute alkali metals and alkaline earth metals, as well as with fine powders of metals in groups 2 and 3 of the periodic system at temperatures above 300 C-400 C. Only elementary fluorine, chlorotrifluoride and alkali metals attack it; halogenated hydrocarbons have a reversible swelling effect. The voltage stated on the type plate must correspond to the mains voltage. Don t cover the machine, even partially e.g. with metallic plates or film, which will result in overheating. Ensure the heating plate is kept clean. Protect the machine and accessories from bumps and impacts. The minimum distance between the machines: the minimum distance between the machine and the wall is 100 mm. Contents of package Items Qty Main unit 1 Power cable 1 Screwdriver 1 Magnetic stirring bar 1 User Manual 1 Stainless Steel Rod (about 25 cm) 1 Table 1 Inspection Unpack the device carefully and check for any damages that may have arisen during transit. Please contact the manufacturer /supplier for technical support. Note: If there is any apparent damage to the device, please do not connect the power line. Control (Next page) 3
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Item 1 Knob for temperature setting Description Set the temperature by rotating the knob 2 Knob for speed setting 3 Knob for safety temperature setting 4 Temperature setting scale Set the speed by rotating the knob Set the safety temperature by rotating the knob. When the heating temperature is higher than the safety temperature, the machine stops heating. It s the max. temperature of 320 C by rotating the knob to the limit in the clockwise direction; it'll be the min. temperature of 50 C by rotating the knob to the limit in the anti-clockwise direction. Reading the temperature setting value. 5 Speed setting scale Read the speed setting value. 6 Heating indicator It s lit when heating. 7 Not applicable Not applicable 8 Setting indicator The light will flash when setting the temperature or speed. 9 Power switch Switch on/off Table 2 5
Trial run Make sure the required voltage corresponds to the mains voltage. Ensure the socket must be properly grounded. Switch on and start initializing. Add sample into the container with an appropriate stirring bar. Place the container on the heating plate. Set the target speed and start stirring. Observe the stirring bar operation. Set the temperature and start heating. Connect the external temperature sensor. Set temperature by the temperature setting knob. Heating is switched on/off by pressing the temperature setting. The set temperature of last operation will be displayed when the machine is switched on. Normally, the set temperature and the actual temperature may probably have some differences: - Hotplate center and outer edge - The sample inside the container and the container If the above operations are normal, the device is good to run. If these operations are abnormal, the device may probably be damaged during transit, please contact manufacturer/supplier for technical support. Warning! DO NOT move the container when the device is working. Heating With the digital temperature control, the machine has two separate safe circuits. The hotplate is kept at a constant temperature by a digital control circuit. The hotplate temperature can also be monitored by another adjustable safe circuit. The two temperature sensors (PT1000) internal for temperature control are built into the hotplate. 6
Residual heat warning (HOT) To prevent the risk of burns from the hotplate, this instrument has residual heat warning function. When heating is stopped, and the heating plate temperature is still above 50 C, the setting indicator will light up to warn that there s potential risk of burns. When the hotplate temperature drops to below 50 C, the instrument will be automatically powered off. To turn off the instrument immediately, pull out the plug. In case of main power failure or disconnection, the residual heat warning will not work. Stirring Stirring is switched on / off by pressing the speed setting knob. The speed is set by rotating the knob in the range of 50-1500rpm. Faults - Check if the residual heat warning function is still on and the hotplate temperature is above 50 C (the setting indicator is lit) Fault Fault description Solutions D2 light, D3 flash D1, D2 light, D3 flash Internal temperature sensor PT1000 failure Motor failure Table 3 Re-start the device Reduce the sample D1 for Heating indicator light, D2 for External temperature sensor indicator light; D3 for Power on indicator light The device can t work when powered on - Check if the power line is connected properly - Check if the fuse is broken or loose Fault in power on self test - Power off the device and then restart Actual speed can t reach the set value - Media in high viscosity may probably cause abnormal speed reduction of the motor The device can t be powered off when switched off If the instrument still can t work properly, please contact manufacturer/ supplier for technical support. Maintenance Proper maintenance can make the device work well and extend its life. Do not allow moisture to get into the device when cleaning. Disconnect the main plug when cleaning. Wear protective gloves when cleaning. Only use the recommended cleansing agents. 7
Dyes Construction materials Cosmetics Foodstuffs Fuels Isopropyl alcohol Water containing surfactant / Isopropyl alcohol Water containing surfactant / Isopropyl alcohol Water containing surfactant Water containing surfactant Product End of Life Disposal Instructions: This electronic product is subject to disposal and recycling regulations that vary by country and region. It is your responsibility to recycle your electronic equipment per your local environmental laws and regulations to ensure that it will be recycled in a manner that protects human health and the environment. To find out where you can drop off your waste equipment for recycling, please contact your local waste recycle/disposal service or the product representative. Table 4 Standards and Regulations USA/Canada: ctuvus (NRTL: Nationally Recognized Testing Laboratory) NRTL Symbol: The European Union WEEE (Waste Electrical and Electronic Equipment) symbol (above) and on the product or on its packaging indicates that this product must not be disposed of in a standard waste container. International 8
Specifications Items MI0102010 Voltage [VAC] 200-240/100-120 Frequency [Hz] 50/60 Power [W] 650 Stirring point position quantity 1 Max. stirring quantity (H 2O) [L] 5 Max. magnetic bar [L x Φ, mm ] 55 x 10 Motor Type Max. power input of motor [W] 30 Max. power output of motor [W] 20 Speed range [rpm] 50-1500 Speed display Temperature display Working plate material Dimension of working plate (mm) Brushless DC motor Scale reading Scale reading Aluminum alloy with ceramic coated Φ135 Heating power [W] 600 Temperature range [ C] 50-310 Safety temperature [ C] 50-320 Residual heat warning 50 C Dimensions [W x D x H, mm] Weight [kg] 1.9 Permissible ambient temperature [ C] 250x148x85 5-40 Permissible relative humidity 80% Protection class acc. to DIN EN60529 Warranty Table 5 IP42 The instrument is warranted to be free from defects in materials and workmanship under normal use and service for a period of five years from the date of invoice. The warranty is extended only to the original purchaser. It doesn t cover any worn out parts, nor apply to any damage by improper use, insufficient care or maintenance not carried out in accordance with the instructions in this operating manual. For claims under the warranty please contact your local supplier. You may also send the instrument directly to manufacturer, enclosing the invoice copy and giving reasons for the claim. 9
Technical Support Address Phone Email Web PASCO scientific 10101 Foothills Blvd. Roseville, CA 95747-7100 916-462-8384 (worldwide) 800-772-8700 (US) techsupp@pasco.com www.pasco.com/support 10